Rick Posted July 26, 2014 Share #921 Posted July 26, 2014 Advertisement (gone after registration) I think the short answer is roughy this. Some number of the early models (420xxxx serial number range I think) exhibited this issue. Mine is in that range and never did. The fix is to send it to Leica and they'll fix it. I've read some people say the lens didn't come back quite the same, but I don't know the details on that. As for what to check, take a shot with the sun low in the sky coming in at an angle (think a backlit portrait). It'll flare obscenely if you have the problem. I would have expected this sort of a shot to reveal it, but I've never seen it in my early copy. jbl Photo Keywords: 50mm apo This is totally wrong. Read the posts and discover what type of situation causes the CVF. It has nothing to do with the sun low in the sky. Your lens if one of the first lenses is at risk to flare if, you know what to look for. Link to post Share on other sites More sharing options...
Advertisement Posted July 26, 2014 Posted July 26, 2014 Hi Rick, Take a look here APO Summicron 50/2 ASPH: Central veiling flare / fogging. I'm sure you'll find what you were looking for!
CheshireCat Posted July 26, 2014 Share #922 Posted July 26, 2014 This is totally wrong. Read the posts and discover what type of situation causes the CVF. It has nothing to do with the sun low in the sky. Your lens if one of the first lenses is at risk to flare if, you know what to look for. Ok, now I am confused. Is there a certain serial number from which we know the issue has been fixed at the factory ? Other manufacturers officially tell customers which serial numbers are affected by a serious issue, and I expect Leica to do the same. Lens production stopped for 3 weeks, so they had plenty of time to take note of the next serial number. Link to post Share on other sites More sharing options...
wlaidlaw Posted July 26, 2014 Share #923 Posted July 26, 2014 I don’t know whether it is just to confuse us like the random unique image ID on the M240 but Leica serial numbers now seem to be all over the place. Prior to about 1996, you could look up on a table and know pretty much exactly when your Leica item was made. I see nothing wrong with this approach but maybe the dealers did not like it, with the risk of getting stuck with or having to discount old stock. Wilson Link to post Share on other sites More sharing options...
jbl Posted July 26, 2014 Share #924 Posted July 26, 2014 This is totally wrong. Read the posts and discover what type of situation causes the CVF. It has nothing to do with the sun low in the sky. Your lens if one of the first lenses is at risk to flare if, you know what to look for. I should have said that was roughly my understanding from following the thread loosely over its life. I don't know if mine has the issue. All I know, is I've never had a photo with that lens that had and optical or technical problems that weren't due to me screwing something up. It's an astoundingly good lens and as an engineer, I admire the confidence it took in Leica to pursue a goal like making this lens. -jbl Link to post Share on other sites More sharing options...
algrove Posted July 27, 2014 Share #925 Posted July 27, 2014 Ok, now I am confused.Is there a certain serial number from which we know the issue has been fixed at the factory ? Other manufacturers officially tell customers which serial numbers are affected by a serious issue, and I expect Leica to do the same. Lens production stopped for 3 weeks, so they had plenty of time to take note of the next serial number. I can tell you production stopped way longer than 3 weeks. Link to post Share on other sites More sharing options...
LeicaPassion Posted July 27, 2014 Share #926 Posted July 27, 2014 I called Leica NJ and confirmed that my APO the post-recall version. Link to post Share on other sites More sharing options...
CheshireCat Posted July 27, 2014 Share #927 Posted July 27, 2014 Advertisement (gone after registration) I called Leica NJ and confirmed that my APO the post-recall version. Can you please tell us the first 3 or 4 digits of the serial number ? Link to post Share on other sites More sharing options...
algrove Posted July 27, 2014 Share #928 Posted July 27, 2014 Serial number may not be sequential. I received one on 27 February 2014 after production began again #423xxxx. Link to post Share on other sites More sharing options...
LeicaPassion Posted July 27, 2014 Share #929 Posted July 27, 2014 Can you please tell us the first 3 or 4 digits of the serial number ? 4234XXX Link to post Share on other sites More sharing options...
epand56 Posted August 6, 2014 Share #930 Posted August 6, 2014 Going through these 47 pages I'm quite surprised to see what you get for $ 8,250... Link to post Share on other sites More sharing options...
tom0511 Posted August 6, 2014 Share #931 Posted August 6, 2014 dont forget that internet forums do not mirror representative statistics. Link to post Share on other sites More sharing options...
albireo_double Posted August 9, 2014 Share #932 Posted August 9, 2014 Mine's 415xxx and seems ok. Only got it approx. a month ago, but it was a dealer's demo so I don't know if it's a pre-fix or post-fix specimen. Link to post Share on other sites More sharing options...
Bill W Posted August 10, 2014 Share #933 Posted August 10, 2014 I should have said that was roughly my understanding from following the thread loosely over its life. I don't know if mine has the issue. All I know, is I've never had a photo with that lens that had and optical or technical problems that weren't due to me screwing something up. It's an astoundingly good lens and as an engineer, I admire the confidence it took in Leica to pursue a goal like making this lens. -jbl Same here with mine, it is one of the pre-fix versions or whatever that means. I have never had an issue that I did not cause myself. It is an incredible lens. Link to post Share on other sites More sharing options...
algrove Posted August 10, 2014 Share #934 Posted August 10, 2014 I have one of each. My "early" model functions fine for me. The "late" model is still in its box, unused, Link to post Share on other sites More sharing options...
349A Posted August 10, 2014 Share #935 Posted August 10, 2014 I have one of each. My "early" model functions fine for me. The "late" model is still in its box, unused, Sounds totally wasteful. Link to post Share on other sites More sharing options...
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